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 30678-a23e500d22) Lines: 2553 2925 87.3 %
Date: 2026-02-15 09:22:35 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450013
Fl2_inv_pre 197417
Fl2_mul_pre 1954036
Fl2_norm_pre 127602
Fl2_pow_pre 671925
Fl2_sqr_pre 4912888
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76096
Fl_Flxq_log 35560
Fl_Xp1_powu 0
Fl_to_Flx 21956668
Flm_to_FlxV 2772
FlvV_polint_tree 2587543
Flv_Flm_polint 104561
Flv_inv 1744460
Flv_invVandermonde 153445
Flv_inv_i 1756466
Flv_inv_indir 52214
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21088215
Flv_inv_pre_inplace 19356970
Flv_polint 1485170
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745657
Flv_roots_to_pol 842176
Flv_to_Flx 25487946
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 325160
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 25999
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 294135
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28961
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171874
FlxV_to_Flm_lg 12968769
FlxV_to_FlxX 397977
FlxV_to_ZXV 606841
FlxV_to_ZXV_inplace 3031555
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9848234
Flx_Fl_mul 7327618
Flx_Fl_mul_pre 18292374
Flx_Fl_mul_to_monic 11857084
Flx_Fl_sub 151683
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785953
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13167263
Flx_Flxq_eval 791313
Flx_Flxq_eval_pre 2444606
Flx_Frobenius 86619
Flx_Frobenius_pre 13812237
Flx_Laplace 27337
Flx_Newton 54093
Flx_add 66138920
Flx_addmulmul 416805
Flx_addshift 3729093
Flx_addspec 7259598
Flx_blocks 526151
Flx_blocks_Flm 12968182
Flx_composedprod 0
Flx_composedsum 27546
Flx_convol 0
Flx_deflate 420781
Flx_deriv 22980960
Flx_diff1 14447
Flx_digits 0
Flx_div_by_X_x 36571668
Flx_divrem 30443263
Flx_divrem_Barrett 604565
Flx_divrem_Barrettspec 906242
Flx_divrem_basecase 62285539
Flx_divrem_pre 79722386
Flx_double 2443925
Flx_equal 26864541
Flx_eval 20428937
Flx_eval2BILspec 603301
Flx_eval_powers_pre 48539474
Flx_eval_pre 136176864
Flx_extgcd 856779
Flx_extgcd_basecase 6286228
Flx_extgcd_halfgcd 146655
Flx_extgcd_pre 6286236
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109393
Flx_gcd 35004306
Flx_gcd_basecase 85753576
Flx_gcd_pre 87417846
Flx_get_red 14502772
Flx_get_red_pre 97027862
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1127150
Flx_halfgcd_all_pre 1127154
Flx_halfgcd_pre 873157
Flx_halfres_basecase 1134225
Flx_halfres_i 1154194
Flx_halfres_pre 1044
Flx_halfres_split 19963
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160406
Flx_integ 0
Flx_integXn 422760
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134392
Flx_invBarrett_pre 158852
Flx_invLaplace 54362
Flx_is_l_pow 8189
Flx_is_smooth 74256
Flx_is_smooth_pre 118787
Flx_is_smooth_squarefree 126987
Flx_is_squarefree 9181045
Flx_lgrenormalizespec 2134333
Flx_matFrobenius 0
Flx_matFrobenius_pre 86568
Flx_mod_Xn1 31509
Flx_mod_Xnm1 4907379
Flx_mul 27794100
Flx_mul_pre 379298026
Flx_mulhigh_i 947904
Flx_mullimb 1185613855
Flx_mullimb_ok 3374655181
Flx_mulspec 384887443
Flx_mulspec_Kronecker 7354552
Flx_mulspec_basecase 347113471
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10147
Flx_mulspec_mulii_inflate 294049
Flx_mulspec_quartmulii 97167
Flx_neg 3264273
Flx_neg_inplace 1780025
Flx_negspec 3264274
Flx_normalize 64799224
Flx_powu 0
Flx_powu_pre 3916
Flx_recip 0
Flx_recipspec 7288058
Flx_red 1879904
Flx_rem 42220987
Flx_rem_basecase 798678201
Flx_rem_pre 922719467
Flx_renormalize 2151697147
Flx_rescale 1117
Flx_resultant 4731747
Flx_resultant_basecase_pre 14596858
Flx_resultant_pre 14598878
Flx_shift 27397010
Flx_shiftip 632280056
Flx_splitting 147325
Flx_sqr 354670
Flx_sqr_pre 276571075
Flx_sqrspec 276728774
Flx_sqrspec_Kronecker 695084
Flx_sqrspec_basecase 275889911
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2067
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138652667
Flx_subspec 898492
Flx_to_Flv 66645741
Flx_to_FlxX 71405
Flx_to_ZX 38297422
Flx_to_ZX_inplace 36541161
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204552
Flx_translate1 17107
Flx_translate1_basecase 29201
Flx_triple 1049261
Flx_unscale 0
Flx_val 4465150
Flx_valrem 28472726
Flxn_div 56322
Flxn_div_pre 56346
Flxn_exp 0
Flxn_expint 109391
Flxn_inv 1037
Flxn_mul 75833
Flxn_mul_pre 5179092
Flxn_mulhigh 526075
Flxn_recip 217318
Flxn_red 6360470
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 780121
Flxq_auttrace_pre 959926
Flxq_auttrace_sqr 652806
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2416846
Flxq_easylog 519341
Flxq_inv 335765
Flxq_inv_pre 4286464
Flxq_invsafe 670432
Flxq_invsafe_pre 5429488
Flxq_is2npower 0
Flxq_issquare 404492
Flxq_log 164208
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170662
Flxq_minpoly 45937
Flxq_minpoly_pre 809685
Flxq_mul 13192570
Flxq_mul_pre 187986247
Flxq_norm 443141
Flxq_order 97328
Flxq_pow 948280
Flxq_pow_Frobenius 22301878
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23365347
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232014
Flxq_powers_pre 22434323
Flxq_powu 488335
Flxq_powu_pre 24179182
Flxq_sqr 2763151
Flxq_sqr_pre 275604993
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 4212533
Flxq_transmul_init 1746290
RgXV_to_FlxV 7
RgX_to_Flx 2205410
Rg_to_F2 1710131
Rg_to_Fl 72936938
Rg_to_Flxq 3588278
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3812744
ZXV_to_FlxV 0
ZX_to_Flx 170971744
Z_mod2BIL_Flx 305863
Z_mod2BIL_Flx_2 308793
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556426
ZpX_invLaplace_init 497
_Fl2_mul 1924995
_Fl2_pow 671913
_Fl2_rand 113839
_Fl2_sqr 4912875
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11784150
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146773046
_Flxq_neg 366572
_Flxq_one 22434545
_Flxq_pow 22294469
_Flxq_powu 68
_Flxq_powu_i 22925185
_Flxq_rand 6566
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267708164
bounded_order 395386
gener_Flxq 7201
get_Fl_threshold 2325249982
get_Flx_red 986757947
get_Flxq_field 68902
get_Flxq_star 283437
init_invlaplace 12514
int_to_Flx 12217
int_to_Flx_half 507058
int_to_Flx_quart 107385
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 20997352
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 5663392
kron_unpack_Flx_bits_wide 5669592
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8484082
mkF2 7327133
monomial_Flx 941232
random_Flx 2646023
set_Flxq 68922
set_Flxq_pre 69278178
translate_basecase 42366
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6395058

Generated by: LCOV version 1.16