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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 - alglin1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30347-cb65b7994e) Lines: 2703 3076 87.9 % Date: 2025-06-27 09:22:08 Functions: 296 316 93.7 % Legend: Lines: hit not hit

Function Name	Hit count
FlkM_inv	0
FpM_intersect	0
FpM_invimage	0
RgM_indexrank_FqM	0
RgMs_structelim	0
RgV_deplin	0
ZM_imagecompl	0
ZM_inv_ratlift	0
ZabM_inv_ratlift	0
_F2xqM_mul	0
_copy	0
add_slices	0
eigen	0
gc_gauss	0
gc_ker	0
gen_gc_ker	0
gen_matcolinvimage	0
gen_matmul_sw	0
reducemodlll	0
subtract_slices	0
F2m_image	7
F2xqM_det	7
F2xqM_image	7
F2xqM_indexrank	7
F2xqM_ker	7
F2xqM_rank	7
F2xqM_suppl	7
FlxqM_indexrank	7
FqM_indexrank	7
image2	7
reducemodinvertible	7
FpM_FpC_invimage_gen	8
F2m_suppl	14
F2xqM_F2xqC_gauss	14
F2xqM_deplin	14
F2xqM_gauss	14
FlxqM_FlxqC_gauss	14
FlxqM_suppl	14
FpM_FpC_gauss	14
FqM_FqC_gauss	14
RgC_inflate	14
F2xqM_F2xqC_invimage	21
F2xqM_F2xqC_mul	21
F2xqM_gauss_pivot	21
F2xqM_invimage	21
F2xqM_ker_i	21
FlxqM_FlxqC_invimage	21
FlxqM_gauss	21
FlxqM_image	21
FqM_FqC_invimage	21
FqM_gauss	21
QM_rank	21
gen_get_suppl	21
gen_suppl	21
FlxqM_det	28
FlxqM_ker	28
RgM_RgC_invimage_FpC	28
RgM_deplin_i	28
RgM_div	28
RgM_indexrank_FpM	28
gen_matinv_upper	28
F2xqM_inv	35
FlxqM_FlxqC_mul	35
FlxqM_deplin	35
FlxqM_rank	35
FpM_gauss	35
FpM_invimage_gen	35
RgM_image_FqM	35
gen_matrank	35
FlxqM_invimage	42
FqM_invimage	42
RgM_det_FqM	42
RgM_inv_FqM	42
F2Ms_colelim	46
FqM_image	49
RgM_deplin_FqM	49
RgM_rank_FqM	49
F2m_indexrank	53
RgM_is_symmetric_cx	53
eigen_err	53
FlxqM_inv	56
FpM_rank	56
F2xqM_gauss_gen	63
FqM_FqC_mul	63
RgM_RgC_solve_FpC	63
gen_invimage_CUP	63
FqM_det	70
FqM_rank	70
RgM_suppl_FpM	70
gen_matcolinvimage_i	71
gen_matinv_upper_ind	77
gen_matinvimage	77
FqM_deplin	84
RgM_invimage_FpM	84
imagecompl	84
imagecompl_aux	84
FlxqM_gauss_i	91
RgM_ker_FqM	91
FqM_inv	98
Flm_suppl	105
FqM_gauss_pivot_gen	105
RgM_deplin_FpM	105
RgM_solve_FpM	105
gen_deplin_echelon	105
QM_deplin	119
FqM_ker_gen	126
RgM_rank_FpM	126
FqM_gauss_gen	133
gen_det_CUP	140
gen_invimage	140
mateigen	144
RgMs_structelim_col	147
gen_colei	154
RgM_suppl_fast	175
suppl	175
ZabM_pseudoinv	182
QM_det	203
matimage0	217
det_init_max	252
gen_det	294
FpM_det_gen	315
FlxqM_gauss_pivot	361
RgM_invimage	364
RgM_invimage_fast	364
RgM_rank_fast	371
rank	371
RgM_deplin	385
RgM_deplin_fast	385
deplin	385
coeff_det	406
gen_det_i	420
gauss	434
FqM_gauss_pivot	438
det_bareiss	462
RgM_image_FpM	525
RgM_ker_FpM	553
gen_gauss_CUP	559
gen_pivots_CUP	610
RgM_Fp_init3	658
det_develop	658
ZabM_ker	679
ZabM_ker_check	711
FlxqM_ker_i	812
gen_Gauss_pivot	1119
FpM_gauss_pivot_gen	1214
gauss_pivot_ker	1271
gen_ker	1271
ker_aux	1271
FlkM_ker	1332
FpXM_ratlift	1332
QM_indexrank	1344
F2xqM_mul	1449
row_count_non_zero	1456
col_count_non_zero	1470
FqM_suppl	1481
RgM_det_FpM	1519
gen_pivots	1722
ZabM_inv	1897
ZabM_true_Hadamard	1897
RgM_inv_FpM	2051
ZabM_inv_slice	2063
ZabM_inv_worker	2063
gen_rsolve_upper_2	2256
gen_ker_echelon	2373
gen_matneg	2450
ZabM_indexrank	2485
FpM_ker_gen	2642
FpM_gauss_gen	2749
gen_gauss	3036
FlkM_adjoint	3320
FqM_ker	3451
FqM_ker_i	3535
RgM_RgC_invimage_fast	3654
gen_ker_i	3672
gauss_get_pivot_NZ	3752
RgM_RgC_invimage	3759
inverseimage	3920
gen_solve_upper_1	4035
RgM_Fp_init	4599
FlmV_recover_pre	4652
FpM_det	4683
ZM_pseudoinv	5075
QM_image	5411
gen_Gauss	5816
vecnorml1	5817
gen_rsolve_upper	5840
gen_lsolve_upper_2	5894
QM_gauss	6006
RgM_image_fast	6034
image	6034
gen_lsolve_lower_unit_2	6065
QM_image_shallow	6181
ZM_indeximage	6181
indeximage0	6181
QM_gauss_i	6335
QC_normalize	6342
_FqM_mul	6349
fill_wcol	7446
rem_singleton	7639
_FlxqM_mul	7924
ZM_det2	8764
closemodinvertible	9133
gen_CUP	10598
RgM_ker_fast	10668
ker	10668
indexcompl	12199
gen_rsolve_lower_unit_2	12590
gen_zerocol	13108
gen_zeromat	13108
gen_lsolve_upper	13882
gen_colneg	14704
gen_CUP_basecase	16007
gen_lsolve_lower_unit	16025
gen_echelon	17685
QM_ker	18270
RgM_Hadamard	20150
ZM_det_slice	20872
ZM_det_worker	20872
_gen_get_col	21485
indexrank_all	21844
_FpM_mul	22487
det0	26593
set_pivot_fun_all	27598
gen_rsolve_lower_unit	30422
RgM_det_fast	34131
Flm_image	41307
FpM_indexrank	42726
perm_complete	43688
ZM_inv0	43764
matker0	46221
gen_matscalmul	47140
gen_matcolmul	48648
RgM_solve_fast	49014
ZM_ker	49269
detint	49964
_gen_addmul	57335
Flm_indexrank	58450
det_simple_gauss	59265
gen_matsub	63502
parallelogramarea	64723
ZM_ker_i	66664
QM_inv	67425
ZM_ker_chinese	69755
gen_matmul	75983
gen_matmul_classical	75983
gen_matmul_i	75983
FpM_ratlift_worker	76870
RgM_indexrank_fast	83661
indexrank	83661
FqM_mul	86016
RgM_det2	94305
rem_col	95962
ZM_det3	100514
ZM_ker_filter	105428
ZM_det	131017
ZM_ker_slice	133595
ZM_ker_worker	133595
det2	135371
FlxqM_mul	148988
ZM_detmult	166030
RgM_pivots	175079
gauss_get_pivot_padic	201820
det	246444
FpM_intersect_i	263937
FpM_suppl	269782
get_suppl	270282
init_suppl	270282
FpM_FpC_invimage	300822
gen_colscalmul	310391
FpM_image	334260
gen_matcolmul_i	350531
FpM_inv	355039
FpM_gauss_i	355088
image_from_pivot	375669
FpM_deplin	461587
gen_colsub	574403
RgM_inv	616412
RgM_inv_fast	616412
FpM_gauss_pivot	646821
ZM_inv1	647005
RgM_true_Hadamard	721757
ZM_inv2	734620
ZM_adj_ratlift	759769
can_ratlift	767034
ZM_inv_slice	795424
ZM_inv_worker	795424
FpM_ker	854641
RgM_RgC_solve_fast	1245473
RgM_solve_realimag	1283721
RgM_solve	1294487
FpM_init	1302311
get_col	1317479
FpM_ker_i	1318876
FpM_init3	1318878
RgM_inv_upper	1639957
ZM_gauss	1791411
ZM_gauss_i	1791411
ZM_indexrank	1823045
RgM_solve_basecase	1848441
init_pivot_list	2012422
indexrank0	2028001
set_pivot_fun	2073513
ZM_inv	2079723
ZM_gauss_slice	2099297
ZM_gauss_worker	2099297
ZM_inv_i	2147149
ZM_rank	2254984
init_gauss	2478302
gauss_get_pivot_max	2679730
split_realimag	2706647
FpM_ratlift_parallel	2819938
RgM_inv_upper_ind	3312781
ZM_count_0_cols	4326135
ZM_pivots	4339875
split_realimag_col	4735908
_submul	18823892

Generated by: LCOV version 1.16