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 - RgV.c (source / functions) Coverage Total Hit Test: PARI/GP v2.18.1 lcov report (development 31053-95e3b72995) Lines: 88.1 % 578 509 Test Date: 2026-07-24 17:03:07 Functions: 91.3 % 104 95 Legend: Lines:     hit not hit

Function Name	Hit count
RgC_RgM_mul	0
RgM_RgV_mul	0
RgM_Rg_sub	0
RgM_multosym	0
RgM_transmul	0
RgV_sumpart	0
RgV_sumpart2	0
_RgM_sub	0
_RgM_zero	0
RgM_sqr_QXQM	7
RgM_RgC_mul_FpM	28
RgM_RgC_mul_FqM	28
RgV_is_ZMV	49
RgM_sqr_ZXQM	133
RgM_powers	168
RgM_is_QM	203
_RgM_sqr	238
scalarmat_s	252
isdiagonal	315
RgM_isdiagonal	336
RgM_sumcol	400
RgX_RgMV_eval	490
RgC_is_ei	644
RgM_Rg_add_shallow	739
_RgM_mul	763
RgM_sqr_fast	1372
RgM_sqr	1407
RgX_RgM_eval	1470
RgM_mul_ZXQM	1505
RgC_RgV_mul	1687
_RgM_red	2954
RgM_isidentity	3664
_RgM_add	3836
_RgM_one	4221
RgMrow_RgC_mul	4795
RgM_mul_QXQM	5124
RgX_is_monic_ZX	5173
RgV_neg	5271
_RgM_cmul	5796
RgM_transmultosym	7663
RgM_Rg_add	7878
RgM_liftred	13398
RgM_isscalar	18417
RgM_det_triangular	22855
RgC_Rg_sub	24155
RgM_mul_FqM	26005
Rg_RgC_sub	32766
RgV_Rg_mul	38990
RgM_mul_FpM	57148
RgM_mul_FpM_i	57148
RgM_zm_mul	57925
RgV_zm_mul	58931
RgMrow_zc_mul	70028
RgM_zc_mul	71981
RgV_zc_mul	83454
RgM_sub	174241
RgM_zc_mul_i	242996
RgV_zc_mul_i	293289
RgM_Rg_sub_shallow	316623
RgM_ZM_mul	356708
RgV_sub	381067
RgV_RgM_mul	426340
RgV_prod	458545
RgV_kill0	484910
RgM_neg	542310
RgM_Rg_div	606163
RgM_add	690886
scalarcol	788982
scalarmat	873816
RgV_dotproduct	1031617
RgC_neg	1052504
RgM_is_ZM	1362759
RgM_Rg_mul	1377899
scalarcol_shallow	1496925
RgM_ZC_mul_i	1942830
RgM_ZM_mul_worker	1942830
scalarcol_i	2285907
RgC_Rg_add	2519686
RgV_add	2606578
RgV_sum	3192968
scalarmat_shallow	3376953
_gmul	3395912
RgC_neg_i	4040633
RgC_Rg_div	4492894
RgM_mul_i	4726274
gram_matrix	4843943
RgC_sub	5004477
RgV_RgC_mul	5127157
RgC_sub_i	5918758
RgM_mul_fast	7628306
RgM_mul	7644084
RgMrow_zc_mul_i	8373768
matid	9184267
RgV_dotsquare	9756425
RgC_Rg_mul	12048979
fill_scalmat	13435281
RgC_add	15773701
RgV_dotproduct_i	15980052
RgC_add_i	19037458
RgM_RgC_mul	32245254
RgM_RgC_mul_fast	32245254
RgMrow_ZC_mul_i	32961182
RgM_RgC_mul_i	35195472
RgMrow_RgC_mul_i	118855310

Generated by: LCOV version 2.0-1