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 - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30862-ea47bd413c) Lines: 1881 2002 94.0 % Date: 2026-05-06 09:26:47 Functions: 104 104 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
Leading_is_neg	57630004
Q_to_Fp	226838
Qdivii	143139229
Qdivis	1781425
Qdiviu	151468957
Zp_nosquare_m1	42
_serprec	8514334
addQp	4763028
addRc	311308927
addRq	1302
addTp	7
add_intmod_same	3411658
add_rfrac	3017298
add_rfrac_scal	8823993
add_scal	29447026
add_ser_scal	425153
addqf	77
addsub_frac	40957246
addsub_frac_i	14260303
addsub_polmod	7210
addsub_polmod_scal	13598740
addsub_pp	19974146
conj_i	32426521
conjvec	84
divRc	2926983
divRq	301
divTp	3674
div_T_scal	7362675
div_intmod_same	341559
div_polmod_same	38150
div_rfrac	1187510
div_rfrac_pol	260657
div_rfrac_scal	32435
div_scal_T	15557439
div_scal_pol	14531927
div_scal_rfrac	1052294
div_scal_ser	19292
div_ser	908987
div_ser_scal	1608941
divcR	24474363
divfq	42
divpT	1204910
divpp	13212705
divqf	63
divrunextu	213650785
fix_rfrac	207018
gadd	6270541876
gaddsg	270841992
gconj	390611
gdiv	459306178
gdivgs	13463314
gdivgu	61797307
gdivgunextu	1583803
ginv	38547705
gmul	8979952523
gmul2n	150486809
gmulsg	244401072
gmulug	283956442
gred_rfrac2	39476288
gred_rfrac_simple	57634205
gsqr	1345794481
gsub	2910876490
gsubsg	3271120
inv_polmod	192397
is_ext_qfr	98
kro_quad	35
mkpadic_mod	24594888
mulRc	355766418
mulRq	2387
mulTp	4985936
mul_gen_rfrac	161376
mul_intmod_same	2987758
mul_polmod	2674945
mul_polmod_same	8647444
mul_polmod_scal	3284727
mul_rfrac	7910292
mul_rfrac_scal	10435791
mul_scal	198412319
mul_self_scal	7667529
mul_ser_scal	326494
mulcIR	11907747
mulcc	284863973
mulcxI	15656303
mulcxmI	2986307
mulcxpowIs	5565535
mulpp	17505466
mulqf	28
mulqq	1127
mulrfrac	38170505
pol2ser	6631773
quad_polmod_conj	18669
quad_polmod_mul	5861861
quad_polmod_norm	18669
rfrac_denom_mul_scal	9852071
ser_add	4257566
ser_normalize	7658
setfrac	15158956
sqr_polmod	426119
sqr_ser_part	114271
sqrq	70
sub_intmod_same	1017835
transtype	154225041
utoi_sign	65169797
warn_coercion	126

Generated by: LCOV version 1.16