Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report
Current view: top level - basemath - Flx.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30605-980f9eb85c) Lines: 2553 2925 87.3 %
Date: 2026-01-12 09:21:57 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450255
Fl2_inv_pre 197497
Fl2_mul_pre 1953774
Fl2_norm_pre 127595
Fl2_pow_pre 672203
Fl2_sqr_pre 4910053
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76088
Fl_Flxq_log 35544
Fl_Xp1_powu 0
Fl_to_Flx 21941743
Flm_to_FlxV 2772
FlvV_polint_tree 2587179
Flv_Flm_polint 104561
Flv_inv 1744478
Flv_invVandermonde 153445
Flv_inv_i 1756485
Flv_inv_indir 52208
Flv_inv_inplace 12017
Flv_inv_pre 9643
Flv_inv_pre_indir 21114554
Flv_inv_pre_inplace 19383134
Flv_polint 1485206
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745695
Flv_roots_to_pol 841906
Flv_to_Flx 25484299
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_eval_powers_pre 325150
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 26000
FlxM_eval_powers_pre 22302
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 7099
FlxM_mul_Kronecker_i 81581
FlxM_neg 0
FlxM_pack_ZM 46835
FlxM_pack_ZM_bits 116239
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2485
FlxT_red 291568
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28956
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171870
FlxV_to_Flm_lg 12966728
FlxV_to_FlxX 397977
FlxV_to_ZXV 606751
FlxV_to_ZXV_inplace 3031514
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9844990
Flx_Fl_mul 7327107
Flx_Fl_mul_pre 18291397
Flx_Fl_mul_to_monic 11855851
Flx_Fl_sub 151684
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785991
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13165855
Flx_Flxq_eval 791338
Flx_Flxq_eval_pre 2444620
Flx_Frobenius 86617
Flx_Frobenius_pre 13811933
Flx_Laplace 27347
Flx_Newton 54112
Flx_add 66100308
Flx_addmulmul 416799
Flx_addshift 3724675
Flx_addspec 7250880
Flx_blocks 517081
Flx_blocks_Flm 12966403
Flx_composedprod 0
Flx_composedsum 27551
Flx_convol 0
Flx_deflate 420785
Flx_deriv 22982697
Flx_diff1 14448
Flx_digits 0
Flx_div_by_X_x 36524890
Flx_divrem 30447323
Flx_divrem_Barrett 603874
Flx_divrem_Barrettspec 905280
Flx_divrem_basecase 62284752
Flx_divrem_pre 79723497
Flx_double 2443925
Flx_equal 26635598
Flx_eval 20420071
Flx_eval2BILspec 603307
Flx_eval_powers_pre 48580842
Flx_eval_pre 136167958
Flx_extgcd 856693
Flx_extgcd_basecase 6285993
Flx_extgcd_halfgcd 146652
Flx_extgcd_pre 6285994
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109405
Flx_gcd 35010912
Flx_gcd_basecase 85764777
Flx_gcd_pre 87423690
Flx_get_red 14502696
Flx_get_red_pre 96801642
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1127498
Flx_halfgcd_all_pre 1127500
Flx_halfgcd_pre 873326
Flx_halfres_basecase 1134576
Flx_halfres_i 1154542
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160103
Flx_integ 0
Flx_integXn 422757
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134391
Flx_invBarrett_pre 158851
Flx_invLaplace 54367
Flx_is_l_pow 8152
Flx_is_smooth 74256
Flx_is_smooth_pre 118764
Flx_is_smooth_squarefree 126929
Flx_is_squarefree 9180747
Flx_lgrenormalizespec 2132800
Flx_matFrobenius 0
Flx_matFrobenius_pre 86561
Flx_mod_Xn1 31509
Flx_mod_Xnm1 4907608
Flx_mul 27814337
Flx_mul_pre 378597577
Flx_mulhigh_i 938832
Flx_mullimb 1185788403
Flx_mullimb_ok 3358787657
Flx_mulspec 384174108
Flx_mulspec_Kronecker 7346110
Flx_mulspec_basecase 346528267
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10129
Flx_mulspec_mulii_inflate 294052
Flx_mulspec_quartmulii 97166
Flx_neg 3263543
Flx_neg_inplace 1777875
Flx_negspec 3263674
Flx_normalize 64774904
Flx_powu 0
Flx_powu_pre 3874
Flx_recip 0
Flx_recipspec 7287595
Flx_red 1877656
Flx_rem 42215607
Flx_rem_basecase 797681706
Flx_rem_pre 921731170
Flx_renormalize 2149117275
Flx_rescale 1117
Flx_resultant 4733343
Flx_resultant_basecase_pre 14597744
Flx_resultant_pre 14599921
Flx_shift 27380478
Flx_shiftip 630885814
Flx_splitting 147040
Flx_sqr 354629
Flx_sqr_pre 275811653
Flx_sqrspec 275940845
Flx_sqrspec_Kronecker 695003
Flx_sqrspec_basecase 275204326
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2070
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138639931
Flx_subspec 897754
Flx_to_Flv 66640205
Flx_to_FlxX 71405
Flx_to_ZX 38297600
Flx_to_ZX_inplace 36569837
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204548
Flx_translate1 17108
Flx_translate1_basecase 29202
Flx_triple 1049261
Flx_unscale 0
Flx_val 4474344
Flx_valrem 28444787
Flxn_div 55182
Flxn_div_pre 55196
Flxn_exp 0
Flxn_expint 109393
Flxn_inv 1037
Flxn_mul 75839
Flxn_mul_pre 5159724
Flxn_mulhigh 517019
Flxn_recip 217368
Flxn_red 6330913
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 234845
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 113589
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20696
Flxq_autpow_pre 69448
Flxq_autpow_sqr 47313
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112472
Flxq_autsum_pre 98768
Flxq_autsum_sqr 105110
Flxq_auttrace 0
Flxq_auttrace_mul 779974
Flxq_auttrace_pre 959839
Flxq_auttrace_sqr 652706
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237864
Flxq_div_pre 2416819
Flxq_easylog 519355
Flxq_inv 335770
Flxq_inv_pre 4286487
Flxq_invsafe 670247
Flxq_invsafe_pre 5429316
Flxq_is2npower 0
Flxq_issquare 404492
Flxq_log 164210
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170654
Flxq_minpoly 45937
Flxq_minpoly_pre 809651
Flxq_mul 13192446
Flxq_mul_pre 187445608
Flxq_norm 443145
Flxq_order 97328
Flxq_pow 948188
Flxq_pow_Frobenius 22077081
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23140483
Flxq_pow_table 0
Flxq_pow_table_pre 4392
Flxq_powers 232023
Flxq_powers_pre 22434511
Flxq_powu 488337
Flxq_powu_pre 24179065
Flxq_sqr 2763154
Flxq_sqr_pre 274823990
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23095
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40915
Flxq_sumautsum_pre 210713
Flxq_sumautsum_sqr 295314
Flxq_trace 4696
Flxq_transmul 4212938
Flxq_transmul_init 1746631
RgXV_to_FlxV 7
RgX_to_Flx 2249947
Rg_to_F2 1710288
Rg_to_Fl 73209322
Rg_to_Flxq 3588271
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3812173
ZXV_to_FlxV 0
ZX_to_Flx 171010540
Z_mod2BIL_Flx 305866
Z_mod2BIL_Flx_2 308796
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556589
ZpX_invLaplace_init 497
_Fl2_mul 1924732
_Fl2_pow 672182
_Fl2_rand 113906
_Fl2_sqr 4910120
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11774024
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146235758
_Flxq_neg 366572
_Flxq_one 22434522
_Flxq_pow 22069672
_Flxq_powu 68
_Flxq_powu_i 22925422
_Flxq_rand 6587
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 266950875
bounded_order 395407
gener_Flxq 7201
get_Fl_threshold 2321594764
get_Flx_red 985733563
get_Flxq_field 68902
get_Flxq_star 283439
init_invlaplace 12514
int_to_Flx 12212
int_to_Flx_half 507058
int_to_Flx_quart 107384
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 20980770
kron_pack_Flx_spec_half 688104
kron_unpack_Flx 42785
kron_unpack_Flx_2 2930
kron_unpack_Flx_3 0
kron_unpack_Flx_bits_narrow 5655403
kron_unpack_Flx_bits_wide 5669221
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8475532
mkF2 7323890
monomial_Flx 941397
random_Flx 2646104
set_Flxq 68922
set_Flxq_pre 69053640
translate_basecase 42367
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6406970

Generated by: LCOV version 1.16